YINGSHANHONG

YINGSHANHONG

(Jilin Chinese herbal medicine)

[synonym] manshanhong and YINGSHANHONG (Jilin Chinese herbal medicine).

[source] it is the leaf of Rhododendron Rhododendron.

[plant morphology] Rhododendron Rhododendron

Shrub, 1-2m high. Bark pale gray or dark gray; many branched, branchlets greenish, glandular scales. Leaves alternate; oblong or ovate lanceolate, 3-7 cm long, 1.5-3.5 cm wide, apex acute, base cuneate, subentire, glabrous above, scattered white glandular scales, sometimes margin base sparsely hirsute, pale below, glandular scales; petiole about 5 mm long. 1-3 flowers at the top of last year's branch, first leaves open, pedicel 5-10 mm long, with white glandular scales; sepals short, hairy; corolla purplish red; stamens 10; style longer than corolla. Capsule 1-1.5 cm long, dark brown, 5-locular, apex dehiscent. The flowering period is from April to May. The fruit period is June.

He was born in the mountains. Distributed in Heilongjiang, Jilin, Liaoning, Hebei and other places.

[collection] leaves were collected in summer, fresh or dried in the shade.

[chemical composition] it contains saponins, tannins, reducing substances, polysaccharides, flavonoids, neutral resins, sterols, Oils and volatile oils. The flavonoids in leaves include quercetin, gossypol, Rhododendron, 5-methyl kaempferol and / or 5-methyl myricetin, dihydroquercetin and coumarin. The content of volatile oil (dry leaf) was 0.18% in the middle of August, 0.20% in the end of September and 0.08% in the middle of October, and the content of tannin was 9.31%. In addition, the leaves contain four phenolic acids: p-hydroxybenzoic acid, protocatechuic acid, vanillic acid and syringic acid. Triterpenoids were also found in twigs.

[pharmacological effects] 1. Expectorant and antitussive effects

In mice, 4 g crude drug or 0.2 ml YINGSHANHONG volatile oil only had obvious expectorant effect (phenol red method). Mice fed with the volatile oil of Yingshan red had obvious antitussive effect (ammonia spray and cough inducing method), and the effect of decoction was not obvious.

② Bacteriostasis

The effective concentration of the decoction was 0.125 g / ml.

[toxicity] the median lethal dose of the decoction was 116.5 g / kg.

[function indications] Jilin Chinese herbal medicine: "relieving exterior, clearing lung, relieving cough. Treat cold, headache, cough, bronchitis. "

[usage and dosage] oral administration: decoct soup, 3-5 yuan; or soak in wine.

[cure] cough and wheeze: red mountain 5 yuan, Baijiu Baijiu, soak for five days. Drink one cup each time and take it twice a day. (Jilin Chinese herbal medicine)